EP2431275A3 - Rotorblatt mit integrierter passiver Oberflächenklappe - Google Patents

Rotorblatt mit integrierter passiver Oberflächenklappe Download PDF

Info

Publication number
EP2431275A3
EP2431275A3 EP11182069.2A EP11182069A EP2431275A3 EP 2431275 A3 EP2431275 A3 EP 2431275A3 EP 11182069 A EP11182069 A EP 11182069A EP 2431275 A3 EP2431275 A3 EP 2431275A3
Authority
EP
European Patent Office
Prior art keywords
flap
main body
rotor blade
integrated passive
passive surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11182069.2A
Other languages
English (en)
French (fr)
Other versions
EP2431275B1 (de
EP2431275A2 (de
Inventor
Marc Höfinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsches Zentrum fuer Luft und Raumfahrt eV filed Critical Deutsches Zentrum fuer Luft und Raumfahrt eV
Publication of EP2431275A2 publication Critical patent/EP2431275A2/de
Publication of EP2431275A3 publication Critical patent/EP2431275A3/de
Application granted granted Critical
Publication of EP2431275B1 publication Critical patent/EP2431275B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/72—Means acting on blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
    • B64C23/005—Influencing air flow over aircraft surfaces, not otherwise provided for by other means not covered by groups B64C23/02 - B64C23/08, e.g. by electric charges, magnetic panels, piezoelectric elements, static charges or ultrasounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/72—Means acting on blades
    • B64C2027/7205—Means acting on blades on each blade individually, e.g. individual blade control [IBC]
    • B64C2027/7261—Means acting on blades on each blade individually, e.g. individual blade control [IBC] with flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/28—Boundary layer controls at propeller or rotor blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/30—Wing lift efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)
  • Wind Motors (AREA)
EP11182069.2A 2010-09-21 2011-09-20 Rotorblatt mit integrierter passiver Oberflächenklappe Not-in-force EP2431275B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010041111A DE102010041111A1 (de) 2010-09-21 2010-09-21 Rotorblatt mit integrierter passiver Oberflächenklappe

Publications (3)

Publication Number Publication Date
EP2431275A2 EP2431275A2 (de) 2012-03-21
EP2431275A3 true EP2431275A3 (de) 2013-11-27
EP2431275B1 EP2431275B1 (de) 2014-10-22

Family

ID=44785439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11182069.2A Not-in-force EP2431275B1 (de) 2010-09-21 2011-09-20 Rotorblatt mit integrierter passiver Oberflächenklappe

Country Status (3)

Country Link
US (1) US9193456B2 (de)
EP (1) EP2431275B1 (de)
DE (1) DE102010041111A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015000665U1 (de) 2015-01-24 2015-06-26 Dieter Röhm Vorrichtung eines Sicherheitssystems und/oder Ressourcen-/Energieeffizienz-Verbesserungs - Systems zur Stömungsbeeinflussung eines Aero- oder Hydrodynamischen Körpers (3), nach dem Prinzip einer Rückstromklappe (4)
DE102015113347A1 (de) 2015-01-24 2016-07-28 Dieter Röhm Multifunktionale Flaps für die Verbesserung der Energieeffizienz und Sicherheit
DE102015113404A1 (de) 2015-08-13 2017-02-16 Dieter Röhm Multifunktionales Flap-System zur Verbesserung der Energieeffizienz
US10370098B1 (en) * 2015-12-18 2019-08-06 Amazon Technologies, Inc. Adjustable propeller blade with sound flaps
US9592910B1 (en) 2015-12-18 2017-03-14 Amazon Technologies, Inc. Geometrically reconfigurable propellers
US10287006B1 (en) 2015-12-18 2019-05-14 Amazon Technologies, Inc. Adjustable propeller blades for sound control
CN106050556A (zh) * 2016-08-15 2016-10-26 上海理工大学 垂直轴风力机自适应柔性叶片
JP6980962B2 (ja) 2017-04-26 2021-12-15 国立研究開発法人宇宙航空研究開発機構 メインロータブレード及びヘリコプタ
CN107605658A (zh) * 2017-10-31 2018-01-19 上海理工大学 一种利用翼片改善大范围流动分离的翼型及其控制方法
CN109555641B (zh) * 2018-12-28 2024-01-09 沈阳航空航天大学 一种升阻混合式水平轴风力机叶片
FR3111619B1 (fr) * 2020-06-17 2022-12-23 Airbus Helicopters Pale de giravion munie de cavités, giravion équipé d’une telle pale et procédé d’atténuation d’un bruit
US20240124135A1 (en) * 2022-10-18 2024-04-18 Textron Innovations, Inc. Rotor alignment tab

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625997A (en) * 1946-11-01 1953-01-20 Doak Aircraft Company Inc Helicopter stabilizing device
DE19808196C2 (de) * 1998-02-27 2003-06-05 Eurocopter Deutschland Rotorblatt für einen Hubschrauber
US20090308971A1 (en) * 2007-06-14 2009-12-17 U.S.A As Represented By The Administrator Of The National Aeronautics And Space Administration Airfoil System for Cruising Flight

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1879618A (en) * 1930-11-01 1932-09-27 Icre Jean Baptiste Wing for aircraft
US2034218A (en) * 1934-11-21 1936-03-17 Fred E Weick Lateral control for airplanes
US2373088A (en) * 1940-11-02 1945-04-10 Boeing Aircraft Co Stall indicator
US3215370A (en) * 1963-02-26 1965-11-02 Rotorcraft S A Proprietary Ltd Rotating wing aircraft
US4514143A (en) * 1983-04-28 1985-04-30 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Aircraft rotor blade with passive tuned tab
DE19859041C1 (de) * 1998-12-21 2000-03-09 Daimler Chrysler Ag Verstellbares Blattprofil vom Rotorblatt eines Drehflüglers
US6203269B1 (en) * 1999-02-25 2001-03-20 United Technologies Corporation Centrifugal air flow control
US6484971B2 (en) * 2000-07-24 2002-11-26 Thombi Layukallo Control of flow separation and related phenomena on aerodynamic surfaces
DE102005018427A1 (de) 2005-04-21 2006-11-02 Deutsches Zentrum für Luft- und Raumfahrt e.V. Auftriebsfläche mit verbessertem Ablöseverhalten bei stark veränderlichem Anstellwinkel
US7748958B2 (en) * 2006-12-13 2010-07-06 The Boeing Company Vortex generators on rotor blades to delay an onset of large oscillatory pitching moments and increase maximum lift

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625997A (en) * 1946-11-01 1953-01-20 Doak Aircraft Company Inc Helicopter stabilizing device
DE19808196C2 (de) * 1998-02-27 2003-06-05 Eurocopter Deutschland Rotorblatt für einen Hubschrauber
US20090308971A1 (en) * 2007-06-14 2009-12-17 U.S.A As Represented By The Administrator Of The National Aeronautics And Space Administration Airfoil System for Cruising Flight

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MEYER R K J ED - MEYER R K J: "Experimentelle Untersuchung von Rückströmklappen auf Tragflügeln zur Beeinflussung von Strömungsablösungen", 20 December 2000, FORSCHUNGSBERICHTE AUS DEN INGENIEURWISSENSCHAFTEN, MENSCH UND BUCH VERLAG, DE, PAGE(S) D83,60 - 66, XP002665590 *
PATONE G ET AL: "Aeroflexible Oberflächenklappen als ''Rückstrombremsen'' nach dem Vorbild der Deckfedern des Vogelflügels TEILPROJEKT: BIOMECHANIK DER VOGELFEDERN UND DEREN BIONISCHEN UMSETZUNG", 1 May 1996 (1996-05-01), pages 1 - 11, XP002665589, Retrieved from the Internet <URL:http://www.bionik.tu-berlin.de/user/giani/klappen/evo.html> [retrieved on 20111215] *

Also Published As

Publication number Publication date
DE102010041111A1 (de) 2012-03-22
EP2431275B1 (de) 2014-10-22
US9193456B2 (en) 2015-11-24
US20120070288A1 (en) 2012-03-22
EP2431275A2 (de) 2012-03-21

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